TY  - JOUR
AU  - Sima, Octavian
AU  - De Vismes-Ott, Anne
AU  - Dias, M. S.
AU  - Dryak, Pavel
AU  - Ferreux, Laurent
AU  - Gurau, Daniela
AU  - Hurtado, S.
AU  - Jodlowski, Pawel
AU  - Karfopoulos, Konstantinos L.
AU  - Koskinas, Marina Fallone
AU  - Laubenstein, Matthias
AU  - Lee, Y. K.
AU  - Lepy, Marie Christine
AU  - Luca, Aurelian
AU  - Menezes, M. O.
AU  - Moreira, Denise S.
AU  - Krneta-Nikolić, Jelena D.
AU  - Peyres, Virginia
AU  - Saganowski, Pawel
AU  - Savva, Marilia I.
AU  - Semmler, Renato
AU  - Solc, Jaroslav
AU  - Thanh, T. T.
AU  - Tyminska, Katarzyna
AU  - Tyminski, Zbigniew
AU  - Vidmar, Tim
AU  - Vukanac, Ivana
AU  - Yucel, Haluk
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8528
AB  - An internal consistency test of the calculation of coincidence-summing correction factors FC for volume sources is presented. The test is based on exact equations relating the values of FC calculated for three ideal measurement configurations. The test is applied to a number of 33 sets of FC values sent by 21 teams. Most sets passed the test, but not the results obtained using the quasi-point source approximation; in the latter case the test qualitatively indicated the magnitude of the bias of FC. © 2019 Elsevier Ltd
T2  - Applied Radiation and Isotopes
T1  - Consistency test of coincidence-summing calculation methods for extended sources
VL  - 155
SP  - 108921
DO  - 10.1016/j.apradiso.2019.108921
ER  - 

@article{
author = "Sima, Octavian and De Vismes-Ott, Anne and Dias, M. S. and Dryak, Pavel and Ferreux, Laurent and Gurau, Daniela and Hurtado, S. and Jodlowski, Pawel and Karfopoulos, Konstantinos L. and Koskinas, Marina Fallone and Laubenstein, Matthias and Lee, Y. K. and Lepy, Marie Christine and Luca, Aurelian and Menezes, M. O. and Moreira, Denise S. and Krneta-Nikolić, Jelena D. and Peyres, Virginia and Saganowski, Pawel and Savva, Marilia I. and Semmler, Renato and Solc, Jaroslav and Thanh, T. T. and Tyminska, Katarzyna and Tyminski, Zbigniew and Vidmar, Tim and Vukanac, Ivana and Yucel, Haluk",
year = "2020",
abstract = "An internal consistency test of the calculation of coincidence-summing correction factors FC for volume sources is presented. The test is based on exact equations relating the values of FC calculated for three ideal measurement configurations. The test is applied to a number of 33 sets of FC values sent by 21 teams. Most sets passed the test, but not the results obtained using the quasi-point source approximation; in the latter case the test qualitatively indicated the magnitude of the bias of FC. © 2019 Elsevier Ltd",
journal = "Applied Radiation and Isotopes",
title = "Consistency test of coincidence-summing calculation methods for extended sources",
volume = "155",
pages = "108921",
doi = "10.1016/j.apradiso.2019.108921"
}

Sima, O., De Vismes-Ott, A., Dias, M. S., Dryak, P., Ferreux, L., Gurau, D., Hurtado, S., Jodlowski, P., Karfopoulos, K. L., Koskinas, M. F., Laubenstein, M., Lee, Y. K., Lepy, M. C., Luca, A., Menezes, M. O., Moreira, D. S., Krneta-Nikolić, J. D., Peyres, V., Saganowski, P., Savva, M. I., Semmler, R., Solc, J., Thanh, T. T., Tyminska, K., Tyminski, Z., Vidmar, T., Vukanac, I.,& Yucel, H.. (2020). Consistency test of coincidence-summing calculation methods for extended sources. in Applied Radiation and Isotopes, 155, 108921.
https://doi.org/10.1016/j.apradiso.2019.108921

Sima O, De Vismes-Ott A, Dias MS, Dryak P, Ferreux L, Gurau D, Hurtado S, Jodlowski P, Karfopoulos KL, Koskinas MF, Laubenstein M, Lee YK, Lepy MC, Luca A, Menezes MO, Moreira DS, Krneta-Nikolić JD, Peyres V, Saganowski P, Savva MI, Semmler R, Solc J, Thanh TT, Tyminska K, Tyminski Z, Vidmar T, Vukanac I, Yucel H. Consistency test of coincidence-summing calculation methods for extended sources. in Applied Radiation and Isotopes. 2020;155:108921.
doi:10.1016/j.apradiso.2019.108921 .

Sima, Octavian, De Vismes-Ott, Anne, Dias, M. S., Dryak, Pavel, Ferreux, Laurent, Gurau, Daniela, Hurtado, S., Jodlowski, Pawel, Karfopoulos, Konstantinos L., Koskinas, Marina Fallone, Laubenstein, Matthias, Lee, Y. K., Lepy, Marie Christine, Luca, Aurelian, Menezes, M. O., Moreira, Denise S., Krneta-Nikolić, Jelena D., Peyres, Virginia, Saganowski, Pawel, Savva, Marilia I., Semmler, Renato, Solc, Jaroslav, Thanh, T. T., Tyminska, Katarzyna, Tyminski, Zbigniew, Vidmar, Tim, Vukanac, Ivana, Yucel, Haluk, "Consistency test of coincidence-summing calculation methods for extended sources" in Applied Radiation and Isotopes, 155 (2020):108921,
https://doi.org/10.1016/j.apradiso.2019.108921 . .

TY  - JOUR
AU  - Krneta-Nikolić, Jelena D.
AU  - Rajačić, Milica
AU  - Todorović, Dragana
AU  - Vidmar, Tim
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1345
AB  - The gamma spectrometry of environmental samples poses a series of specific problems for the practitioner. The determination of full energy peak efficiencies is, in the case of environmental samples, one of the greatest challenges. In this paper, the calibration of two HPGe detectors for environmental samples in Marinelli beakers was performed using the newly developed MEFFTRAN software. The results obtained with MEFFTRAN were compared to the experimental efficiencies measured using the calibration sample produced at the Laboratory for Radiation and Environment Protection, Institute for Nuclear Sciences Vinca, Belgrade, in order to confirm the validity of the calculation. It is shown that calculated and experimental efficiencies are in good agreement with the discrepancies from -3.9% to +1.5%. The results were also validated by measuring secondary reference materials provided by the IAEA within several interlaboratory proficiency tests. The activity concentration of the radionuclides in the secondary reference materials was determined using the efficiency obtained by MEFFTRAN and compared with the target value given by the IAEA. All the results in materials provided by the IAEA were acceptable except one, proving, that MEFFTRAN produces satisfactory results. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Journal of Environmental Radioactivity
T1  - The first experimental test of the MEFFTRAN software on HPGe detector calibration for environmental samples
VL  - 165
SP  - 191
EP  - 196
DO  - 10.1016/j.jenvrad.2016.10.002
ER  - 

@article{
author = "Krneta-Nikolić, Jelena D. and Rajačić, Milica and Todorović, Dragana and Vidmar, Tim",
year = "2016",
abstract = "The gamma spectrometry of environmental samples poses a series of specific problems for the practitioner. The determination of full energy peak efficiencies is, in the case of environmental samples, one of the greatest challenges. In this paper, the calibration of two HPGe detectors for environmental samples in Marinelli beakers was performed using the newly developed MEFFTRAN software. The results obtained with MEFFTRAN were compared to the experimental efficiencies measured using the calibration sample produced at the Laboratory for Radiation and Environment Protection, Institute for Nuclear Sciences Vinca, Belgrade, in order to confirm the validity of the calculation. It is shown that calculated and experimental efficiencies are in good agreement with the discrepancies from -3.9% to +1.5%. The results were also validated by measuring secondary reference materials provided by the IAEA within several interlaboratory proficiency tests. The activity concentration of the radionuclides in the secondary reference materials was determined using the efficiency obtained by MEFFTRAN and compared with the target value given by the IAEA. All the results in materials provided by the IAEA were acceptable except one, proving, that MEFFTRAN produces satisfactory results. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Journal of Environmental Radioactivity",
title = "The first experimental test of the MEFFTRAN software on HPGe detector calibration for environmental samples",
volume = "165",
pages = "191-196",
doi = "10.1016/j.jenvrad.2016.10.002"
}

Krneta-Nikolić, J. D., Rajačić, M., Todorović, D.,& Vidmar, T.. (2016). The first experimental test of the MEFFTRAN software on HPGe detector calibration for environmental samples. in Journal of Environmental Radioactivity, 165, 191-196.
https://doi.org/10.1016/j.jenvrad.2016.10.002

Krneta-Nikolić JD, Rajačić M, Todorović D, Vidmar T. The first experimental test of the MEFFTRAN software on HPGe detector calibration for environmental samples. in Journal of Environmental Radioactivity. 2016;165:191-196.
doi:10.1016/j.jenvrad.2016.10.002 .

Krneta-Nikolić, Jelena D., Rajačić, Milica, Todorović, Dragana, Vidmar, Tim, "The first experimental test of the MEFFTRAN software on HPGe detector calibration for environmental samples" in Journal of Environmental Radioactivity, 165 (2016):191-196,
https://doi.org/10.1016/j.jenvrad.2016.10.002 . .

TY  - JOUR
AU  - Krneta-Nikolić, Jelena D.
AU  - Vidmar, Tim
AU  - Jokovic, Dejan
AU  - Rajačić, Milica
AU  - Todorović, Dragana
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/124
AB  - Determination of full energy peak efficiency is one of the most important tasks that have to be performed before gamma spectrometry of environmental samples. Many methods, including measurement of specific reference materials, Monte Carlo simulations, efficiency transfer and semi empirical calculations, were developed in order to complete this task. Monte Carlo simulation, based on GEANT4 simulation package and EFFTRAN efficiency transfer software are applied for the efficiency calibration of three detectors, readily used in the Environment and Radiation Protection Laboratory of Institute for Nuclear Sciences Vinca, for measurement of environmental samples. Efficiencies were calculated for water, soil and aerosol samples. The aim of this paper is to perform efficiency calculations for HPGe detectors using both GEANT4 simulation and EFFTRAN efficiency transfer software and to compare obtained results with the experimental results. This comparison should show how the two methods agree with experimentally obtained efficiencies of our measurement system and in which part of the spectrum do the discrepancies appear. The detailed knowledge of accuracy and precision of both methods should enable us to choose an appropriate method for each situation that is presented in our and other laboratories on a daily basis. (C) 2014 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - Calculation of HPGe efficiency for environmental samples: comparison of EFFTRAN and GEANT4
VL  - 763
SP  - 347
EP  - 353
DO  - 10.1016/j.nima.2014.06.044
ER  - 

@article{
author = "Krneta-Nikolić, Jelena D. and Vidmar, Tim and Jokovic, Dejan and Rajačić, Milica and Todorović, Dragana",
year = "2014",
abstract = "Determination of full energy peak efficiency is one of the most important tasks that have to be performed before gamma spectrometry of environmental samples. Many methods, including measurement of specific reference materials, Monte Carlo simulations, efficiency transfer and semi empirical calculations, were developed in order to complete this task. Monte Carlo simulation, based on GEANT4 simulation package and EFFTRAN efficiency transfer software are applied for the efficiency calibration of three detectors, readily used in the Environment and Radiation Protection Laboratory of Institute for Nuclear Sciences Vinca, for measurement of environmental samples. Efficiencies were calculated for water, soil and aerosol samples. The aim of this paper is to perform efficiency calculations for HPGe detectors using both GEANT4 simulation and EFFTRAN efficiency transfer software and to compare obtained results with the experimental results. This comparison should show how the two methods agree with experimentally obtained efficiencies of our measurement system and in which part of the spectrum do the discrepancies appear. The detailed knowledge of accuracy and precision of both methods should enable us to choose an appropriate method for each situation that is presented in our and other laboratories on a daily basis. (C) 2014 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "Calculation of HPGe efficiency for environmental samples: comparison of EFFTRAN and GEANT4",
volume = "763",
pages = "347-353",
doi = "10.1016/j.nima.2014.06.044"
}

Krneta-Nikolić, J. D., Vidmar, T., Jokovic, D., Rajačić, M.,& Todorović, D.. (2014). Calculation of HPGe efficiency for environmental samples: comparison of EFFTRAN and GEANT4. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 763, 347-353.
https://doi.org/10.1016/j.nima.2014.06.044

Krneta-Nikolić JD, Vidmar T, Jokovic D, Rajačić M, Todorović D. Calculation of HPGe efficiency for environmental samples: comparison of EFFTRAN and GEANT4. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2014;763:347-353.
doi:10.1016/j.nima.2014.06.044 .

Krneta-Nikolić, Jelena D., Vidmar, Tim, Jokovic, Dejan, Rajačić, Milica, Todorović, Dragana, "Calculation of HPGe efficiency for environmental samples: comparison of EFFTRAN and GEANT4" in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 763 (2014):347-353,
https://doi.org/10.1016/j.nima.2014.06.044 . .

TY  - JOUR
AU  - Lepy, M. -C.
AU  - Altzitzoglou, T.
AU  - Anagnostakis, Marios J.
AU  - Capogni, M.
AU  - Ceccatelli, A.
AU  - De Felice, P.
AU  - Đurašević, Mirjana M.
AU  - Dryak, Pavel
AU  - Fazio, A.
AU  - Ferreux, Laurent
AU  - Giampaoli, A.
AU  - Han, J. B.
AU  - Hurtado, S.
AU  - Kandić, Aleksandar
AU  - Kanisch, G.
AU  - Karfopoulos, Konstantinos L.
AU  - Klemola, S.
AU  - Kovar, P.
AU  - Laubenstein, Matthias
AU  - Lee, J. H.
AU  - Lee, J. M.
AU  - Lee, K. B.
AU  - Pierre, S.
AU  - Carvalhal, G.
AU  - Sima, Octavian
AU  - Chau Van Tao
AU  - Tran Thien Thanh
AU  - Vidmar, Tim
AU  - Vukanac, Ivana
AU  - Yang, M. J.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6970
AB  - The second part of an intercomparison of the coincidence summing correction methods is presented. This exercise concerned three volume sources, filled with liquid radioactive solution. The same experimental spectra, decay scheme and photon emission intensities were used by all the participants. The results were expressed as coincidence summing corrective factors for several energies of Eu-152 and Cs-134, and different source-to-detector distances. They are presented and discussed. (C) 2012 Elsevier Ltd. All rights reserved.
T2  - Applied Radiation and Isotopes
T1  - Intercomparison of methods for coincidence summing corrections in gamma-ray spectrometry-part II (volume sources)
VL  - 70
IS  - 9
SP  - 2112
EP  - 2118
DO  - 10.1016/j.apradiso.2012.02.079
ER  - 

@article{
author = "Lepy, M. -C. and Altzitzoglou, T. and Anagnostakis, Marios J. and Capogni, M. and Ceccatelli, A. and De Felice, P. and Đurašević, Mirjana M. and Dryak, Pavel and Fazio, A. and Ferreux, Laurent and Giampaoli, A. and Han, J. B. and Hurtado, S. and Kandić, Aleksandar and Kanisch, G. and Karfopoulos, Konstantinos L. and Klemola, S. and Kovar, P. and Laubenstein, Matthias and Lee, J. H. and Lee, J. M. and Lee, K. B. and Pierre, S. and Carvalhal, G. and Sima, Octavian and Chau Van Tao and Tran Thien Thanh and Vidmar, Tim and Vukanac, Ivana and Yang, M. J.",
year = "2012",
abstract = "The second part of an intercomparison of the coincidence summing correction methods is presented. This exercise concerned three volume sources, filled with liquid radioactive solution. The same experimental spectra, decay scheme and photon emission intensities were used by all the participants. The results were expressed as coincidence summing corrective factors for several energies of Eu-152 and Cs-134, and different source-to-detector distances. They are presented and discussed. (C) 2012 Elsevier Ltd. All rights reserved.",
journal = "Applied Radiation and Isotopes",
title = "Intercomparison of methods for coincidence summing corrections in gamma-ray spectrometry-part II (volume sources)",
volume = "70",
number = "9",
pages = "2112-2118",
doi = "10.1016/j.apradiso.2012.02.079"
}

Lepy, M. -C., Altzitzoglou, T., Anagnostakis, M. J., Capogni, M., Ceccatelli, A., De Felice, P., Đurašević, M. M., Dryak, P., Fazio, A., Ferreux, L., Giampaoli, A., Han, J. B., Hurtado, S., Kandić, A., Kanisch, G., Karfopoulos, K. L., Klemola, S., Kovar, P., Laubenstein, M., Lee, J. H., Lee, J. M., Lee, K. B., Pierre, S., Carvalhal, G., Sima, O., Chau Van Tao, Tran Thien Thanh, Vidmar, T., Vukanac, I.,& Yang, M. J.. (2012). Intercomparison of methods for coincidence summing corrections in gamma-ray spectrometry-part II (volume sources). in Applied Radiation and Isotopes, 70(9), 2112-2118.
https://doi.org/10.1016/j.apradiso.2012.02.079

Lepy M-, Altzitzoglou T, Anagnostakis MJ, Capogni M, Ceccatelli A, De Felice P, Đurašević MM, Dryak P, Fazio A, Ferreux L, Giampaoli A, Han JB, Hurtado S, Kandić A, Kanisch G, Karfopoulos KL, Klemola S, Kovar P, Laubenstein M, Lee JH, Lee JM, Lee KB, Pierre S, Carvalhal G, Sima O, Chau Van Tao, Tran Thien Thanh, Vidmar T, Vukanac I, Yang MJ. Intercomparison of methods for coincidence summing corrections in gamma-ray spectrometry-part II (volume sources). in Applied Radiation and Isotopes. 2012;70(9):2112-2118.
doi:10.1016/j.apradiso.2012.02.079 .

Lepy, M. -C., Altzitzoglou, T., Anagnostakis, Marios J., Capogni, M., Ceccatelli, A., De Felice, P., Đurašević, Mirjana M., Dryak, Pavel, Fazio, A., Ferreux, Laurent, Giampaoli, A., Han, J. B., Hurtado, S., Kandić, Aleksandar, Kanisch, G., Karfopoulos, Konstantinos L., Klemola, S., Kovar, P., Laubenstein, Matthias, Lee, J. H., Lee, J. M., Lee, K. B., Pierre, S., Carvalhal, G., Sima, Octavian, Chau Van Tao, Tran Thien Thanh, Vidmar, Tim, Vukanac, Ivana, Yang, M. J., "Intercomparison of methods for coincidence summing corrections in gamma-ray spectrometry-part II (volume sources)" in Applied Radiation and Isotopes, 70, no. 9 (2012):2112-2118,
https://doi.org/10.1016/j.apradiso.2012.02.079 . .